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民勤、武威—古浪、临泽３个沙区９个指标的研究结果表明，沙面稳定性主要与植被盖度、≤０．０７４ｍｍ细沙土含量、０．３～０．１ｍｍ中细沙含量及＞０．５ｍｍ粗沙含量有关；０．３～０．１ｍｍ的中细沙是沙面中最不稳定的因素，≤０．０７４ｍｍ细沙土主要为粘土成分。沙面稳定及活化的组合作用主要是以细沙土与植被盖度为代表的固化作用和以细沙土为代表的固化作用以及以０．３～０．１ｍｍ中细沙为代表的活化作用；临泽、武威—古浪沙区较民勤沙区不易固定的原因主要是活动性大的中细沙显著多于粗沙；于降水前在沙面上施撒粘土可大面积固定沙丘，尤其在水分条件限制造林密度不易过大或造林难以成活的重沙害区是一种有效的固沙措施。
The results of 9 indicators in Minqin, Wuwei-Gulang and Linze sandy areas show that the stability of sandy surface is mainly related to the vegetation cover, the content of fine sandy soil ≤0.074mm, the content of fine sand in 0.3 ~ 0.1mm Content and> 0.5mm coarse sand content; 0.3 ~ 0.1mm in the fine sand is the most unstable factor in the sand, ≤ 0.074mm fine sand mainly clay components. The combined effect of sand surface stabilization and activation is mainly the curing effect represented by fine sand soil and vegetation coverage and the solidification represented by fine sand and the activation by the fine sand of 0.3 ~ 0.1mm. The reason why the Ze and Wuwei-Gulang sandy areas are less stable than the Minqin sandy areas is mainly that the active medium-fine sand is significantly more than the coarse sand. Before the precipitation, clay is applied to the sand surface for a large area to fix the sand dunes, Moisture conditions limit the density of afforestation is not easy too large or hard to survive in afforestation heavy sand area is an effective sand fixation measures.